baltimore. this year. bwi contributed to record passenger traffic and low-cost carriers like southwest. >> some big changes coming up on laws concerning children in booster seats. starting next month children under age will have to use a booster seat until they are 4 feet 9 inches tall. experts say height and not wait is the most important factor. it is better to err on the side of caution. a major injuries a child can suffer during an accident if a seat belt does not fit properly. >> that is a minimum thing, the eight years of age. we want children when they get to that age, they should be in a booster seat. they are not ready to come out until they are of the right size and height so that they see benefits them properly as it fits you and i. >> experts say between 80% and 90% of people are doing something wrong when it comes to child safety restraints. do you think children under eight should state and booster seats until they are taller than 4 feet 9 inches? share your response on wbaltv.com, our facebo